# GPT-4.5 vs GPT-5.2

> Side-by-side benchmark comparison for GPT-4.5 and GPT-5.2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-4-5-vs-gpt-5-2
- Last updated: October 14, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: GPT-4.5 and GPT-5.2 share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- GPT-5.2 has the lower published output-token price.
- GPT-5.2 has the larger published context window at 400K.

## Model Snapshot

| Property | GPT-4.5 | GPT-5.2 |
|----------|----------|----------|
| Creator | OpenAI | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 128K | 400K |
| Independent public score (not head-to-head) | null | 59.3 |
| Benchmarks Covered | 6 | 31 |
| Pricing (input/output) | $75.00 / $150.00 | $1.75 / $14.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-4.5 public-lane score: Coming soon
- GPT-5.2 public-lane score: 44 (Supported · #56/124)

| Benchmark | GPT-4.5 | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| BrowseComp | Coming soon | 65.8% | Coming soon |
| OSWorld-Verified | Coming soon | 47.3% | Coming soon |
| Gert Labs | Coming soon | 46.54% | Coming soon |
| JobBench | Coming soon | 34.3% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-4.5 public-lane score: Coming soon
- GPT-5.2 public-lane score: 37.4 (Supported · #71/149)

| Benchmark | GPT-4.5 | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| HumanEval | 88.6% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 80% | Coming soon |
| SWE-bench Pro | Coming soon | 55.6% | Coming soon |
| Vibe Code Bench | Coming soon | 53.50% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-4.5 public-lane score: Coming soon
- GPT-5.2 public-lane score: 64.3 (Unranked · 4 rankable rows)

| Benchmark | GPT-4.5 | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| DROP | 83.4% | Coming soon | Coming soon |
| ARC-AGI-2 | Coming soon | 52.9% | Coming soon |
| ARC-AGI-1 | Coming soon | 86.17% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-4.5 public-lane score: Coming soon
- GPT-5.2 public-lane score: 75.9 (#22/54)

| Benchmark | GPT-4.5 | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| MMMU | Coming soon | 86.7% | Coming soon |
| MMMU-Pro | Coming soon | 79.5% | Coming soon |
| RealWorldQA | Coming soon | 83.3% | Coming soon |
| OmniDocBench 1.5 | Coming soon | 85.7% | Coming soon |
| Video-MME (with subtitle) | Coming soon | 86.0% | Coming soon |
| Video-MME (w/o subtitle) | Coming soon | 85.8% | Coming soon |
| MathVision | Coming soon | 83.0% | Coming soon |
| We-Math | Coming soon | 79.0% | Coming soon |
| DynaMath | Coming soon | 86.8% | Coming soon |
| SimpleVQA | Coming soon | 55.8% | Coming soon |
| CC-OCR | Coming soon | 70.3% | Coming soon |
| AI2D_TEST | Coming soon | 92.2% | Coming soon |
| CountBench | Coming soon | 91.9% | Coming soon |
| ERQA | Coming soon | 59.8% | Coming soon |
| VideoMMMU | Coming soon | 85.9% | Coming soon |
| MLVU (M-Avg) | Coming soon | 85.6% | Coming soon |
| CharXiv | Coming soon | 82.1% | Coming soon |
| V* | Coming soon | 75.9% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- GPT-4.5 public-lane score: Coming soon
- GPT-5.2 public-lane score: 60.2 (Supported · #47/181)

| Benchmark | GPT-4.5 | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| MMLU | 90.8% | Coming soon | Coming soon |
| GPQA | 69.5% | 92.4% | GPT-5.2 |
| SimpleQA | 62.5% | Coming soon | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- GPT-4.5 public-lane score: Coming soon
- GPT-5.2 public-lane score: Coming soon

| Benchmark | GPT-4.5 | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| MGSM | 86.9% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-4.5 public-lane score: Coming soon
- GPT-5.2 public-lane score: 92.6 (#19/128)

### Mathematics

- Winner: Insufficient shared evidence
- GPT-4.5 public-lane score: Coming soon
- GPT-5.2 public-lane score: 71.1 (Unranked · 3 rankable rows)

| Benchmark | GPT-4.5 | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | Coming soon | 100% | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 67.400% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 31.700% | Coming soon |

## FAQ

### Is there enough evidence to pick between GPT-4.5 and GPT-5.2?

Not yet. The models share only 1 sourced benchmark row, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [GPT-4.5 vs GPT-5.2 Pro](/compare/gpt-4-5-vs-gpt-5-2-pro)
- [GPT-5.2 vs GPT-5.2 Pro](/compare/gpt-5-2-vs-gpt-5-2-pro)
- [GPT-4.5 vs GPT-5.2 Instant](/compare/gpt-4-5-vs-gpt-5-2-instant)
- [GPT-5.2 vs GPT-5.2 Instant](/compare/gpt-5-2-vs-gpt-5-2-instant)

## Explore More

- [GPT-4.5 profile](/models/gpt-4-5)
- [GPT-5.2 profile](/models/gpt-5-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)